<template>
  <div class="header">
    <div class="nav-topbar">
      <div class="container">
        <div class="topbar-menu">
          <a href="javascript:;">小米商城</a>
          <a href="javascript:;">mui</a>
          <a href="javascript:;">云服务</a>
          <a href="javascript:;">协议规则</a>
        </div>
        <div class="topbar-user">
          <a href="javascript:;" v-if="username">{{username}}</a>
          <a href="javascript:;" v-if="!username" @click="login">登陆</a>
          <a href="javascript:;" v-if="username" @click="goToCart">我的订单</a>
          <a href="javascript:;" class="my-cart"><span class="icon-cart"></span>购物车</a>
        </div>
      </div>
    </div>
    <div class="nav-header">
      <div class="container">
        <div class="header-logo">
          <a href="/#/index"></a>
        </div>
        <div class="header-menu">
          <div class="item-menu">
            <span>小米手机</span>
            <div class="children">
              <ul>
                <li class="product" v-for="(item,index) in phoneList" :key="index">
                  <a :href="'/#/product/'+ item.id" target="_blank">
                    <div class="pro-img">
                      <img :src="item.mainImage" :alt="item.subtitle"/>
                    </div>
                    <div class="pro-name">{{item.name}}</div>
                    <div class="pro-price">{{item.price | currency}}</div>
                  </a>
                </li>
              </ul>
            </div>
          </div>
          <div class="item-menu">
            <span>RedMi红米</span>
            <!-- <div class="children"></div> -->
          </div>
          <div class="item-menu">
            <span>电视</span>
            <!-- <div class="children"></div> -->
          </div>
        </div>
        <div class="header-search">
          <div class="wrapper">
            <input type="text" name="keyword">
            <a href="javascript:;"></a>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  name: "nav-header",
  data(){
    return{
      username:'jack',
      phoneList:[]
    }
  },
  //局部过滤器
  filters:{
    currency(val){
      if(!val) return '0.00';
      return '￥' + val.toFixed(2) + '元'
    }
  },
  mounted(){
    this.getProductList();
  },
  methods:{
    login(){
      //跳转登陆路由
      this.$router.push('/login')
    },
    getProductList(){
      this.axios.get('products',{
        params:{
          categoryId:'100012',
          pageSize:6
        }
      }).then((res)=>{
        //截取6条数据
        if(res.list.length>=6){
          this.phoneList = res.list.slice(0,6);
        }else{
          this.phoneList = res.list
        }
      })
    },
    goToCart(){
      //跳转路由
      this.$router.push('/cart')
    }
  }
};
</script>
<style lang="scss">
  @import './../assets/scss/base.scss';
  @import './../assets/scss/mixin.scss';
  @import './../assets/scss/config.scss';
  .header{
    .nav-topbar{
      height: 39px;
      line-height: 39px;
      background-color: #333333;
      color: #b0b0b0;
        .container{
          @include flex();
        a{
          display: inline-block;
          color: #b0b0b0;
          margin-right: 17px;
        }
        .my-cart{
          background-color: $colorA;
          width: 110px;
          text-align: center;
          color: #ffffff;
          .icon-cart{
            @include bgImg(16px,12px,'/imgs/icon-cart-checked.png');
          }
        }
      }
    }
    .nav-header{
     .container{
       position: relative;
       height: 112px;
       @include flex();
       .header-logo{
         display: inline-block;
         width: 55px;
         height: 55px;
         background-color: $colorA;
         a{
           display: inline-block;
           width: 110px;
           height: 55px;
           &:before{
             content: '';
             @include bgImg(55px,55px,'/imgs/mi-logo.png',55px);
             display:inline-block;
             transition: margin .2s;
           }
           &::after{
             content: '';
             @include bgImg(55px,55px,'/imgs/mi-home.png',55px);
             display:inline-block;
           }
           &:hover::before{
             margin-left: -55px;
             transition: margin .2s;
           }
         }
       }
       .header-menu{
         display: inline-block;
         width: 643px;
         padding-left: 209px;
         .item-menu{
           display: inline-block;
           color:#333333;
           font-weight: bold;
           font-size: 16px;
           line-height: 112px;
           margin-right: 20px;
           span{
             cursor: pointer;
           }
           &:hover{
             color: $colorA;
             .children{
               height: 220px;
               opacity: 1;
               box-shadow: 0px 7px 6px 0px rgba(0,0,0,0.11);
             }
           }
           .children{
            height: 0;
            opacity: 0;
            overflow: hidden;
            position: absolute;
            top: 112px;
            left: 0;
            width: 1226px;
            border-top:1px solid #E5e5e5;
            z-index: 10;
            background-color: #ffffff;
            transition: height .5s;
            .product{
              position: relative;
              float: left;
              width: 16.6%;
              height: 220px;
              font-size: 12px;
              line-height: 12px;
              text-align: center;
              a{
                display: inline-block;
              }
              img{
                width: auto;
                height: 111px;
                margin-top: 26px;
              }
              .pro-img{
                height: 137px;
              }
              .pro-name{
                font-weight: bold;
                margin-top: 19px;
                margin-bottom: 8px;
                color: $colorB;
              }
              .pro-price{
                color: $colorA;
              }
              &::before{
              content: '';
              position: absolute;
              top: 28px;
              right: 0;
              border-left:1px solid $colorF ;
              height: 100px;
              }
              &:last-child::before{
                display: none
              }
            }
           }
         }
       }
       .header-search{
         width:319px;
         .wrapper{
           height: 50px;
           display: flex;
           align-items: center;
           input{
             border: none;
             box-sizing: border-box;
             border-right: 1px solid #e0e0e0;
             width: 264px;
             height: 50px;
             padding-left: 14px;
           }
           a{
             @include bgImg(18px,18px,'/imgs/icon-search.png');
             display: inline-block;
             padding-left: 17px;
           }
         }
       }
     }
    }
  }
</style>